SNOW-658339: Implement CLOUD_PROVIDER_TOKEN secret type for Java (#120)

* Implement CLOUD_PROVIDER_TOKEN secret type for Java Udx

* Address review comments

---------

Co-authored-by: Shawn Yang <[email protected]>

src/main/java/com/snowflake/snowpark_java/types/CloudProviderToken.java

@@ -0,0 +1,28 @@
+package com.snowflake.snowpark_java.types;
+
+/** The Snowflake class provides access to the CloudProviderToken secret object with the following properties: accessKeyId, 
+ * secretAccessKey, and token.*/
+
+public class CloudProviderToken {
+  private final String accessKeyId;
+  private final String secretAccessKey;
+  private final String token;
+
+  public CloudProviderToken(String id, String key, String token) {
+    this.accessKeyId = id;
+    this.secretAccessKey = key;
+    this.token = token;
+  }
+
+  public String getAccessKeyId() {
+    return accessKeyId;
+  }
+
+  public String getSecretAccessKey() {
+    return secretAccessKey;
+  }
+
+  public String getToken() {
+    return token;
+  }
+}

src/main/java/com/snowflake/snowpark_java/types/SnowflakeSecrets.java

@@ -31,6 +31,15 @@ public UsernamePassword getUsernamePassword(String secretName) {
     throw new UnsupportedOperationException();
   }
 
+  /**
+   * Get the Cloud provider token from the secret. On success, it returns a valid object with access key id,
+   * secret access key and token.
+   *
+   * @param secretName name of the secret object.
+   */
+  public CloudProviderToken getCloudProviderToken(String secretName) {
+    throw new UnsupportedOperationException();
+  }
   /**
    * Get the secret generic string of the secret. On success, it returns a valid token string.
    *